The city of Lancaster is the county seat of Lancaster County, South Carolina, United States, located in the Charlotte Metropolitan Area. As of the United States Census of 2010, the city population was 8,526. The city was named after the famous House of Lancaster.

Lancaster County is a county located in the U.S. state of South Carolina. As of the 2020 census, its population was 96,016, Its county seat is Lancaster, which has an urban population of 23,979. The county was created in 1785.